# Leonard Efraim Gyllenhaal

> (1881-1934)

**Wikidata**: [Q89413459](https://www.wikidata.org/wiki/Q89413459)  
**Source**: https://4ort.xyz/entity/leonard-efraim-gyllenhaal


## References

1. Genealogics
2. [Source](http://www.genealogics.org/getperson.php?personID=I00560015&tree=LEO)